Machine for carding fibrous materials



(No Model.)

J. P. THOMPSON. MACHINE FOR GARDING FIBROUS MATERIALS.

Patented Dec. 23, 1890.

IN VENT-UH. 44 9272 mum/5555:

UNITED STATES PATENT OFFICE.

JOHN P. THOMPSON, OF FALL RIVER, ASSIGNOR OF ONE llALF TO THE lVI-IITINMACHINE XVORKS, OF W HITINSVILLE, MASSACHUSETTS.

MACHINE FOR CARDING FIBROUS MATERIALS.

SPECIFICATION forming part of Letters Patent No. 443,414, dated December23, 1890.

Application filed August 2 1887- Serial No. 248,129- (No model.)

v To aZZ whom it may concern.-

Be it known that I, JOHN P. THOMPSON, of Fall River, in the county ofBristol and State of Massachusetts, have invented certain new and usefulImprovements in Machines for Carding Fibrous Material, of which thefollowing is a full, clear, and exact description, reference being hadto the accompanying drawing, forming part of this specification.

The drawing is a sectional view showing the relative positions of thenew parts and their relation to the old parts of the cardingengine asusually constructed.

In the drawing, A represents the lap-roll, or roll of lapped fiber.

B B are the feed-rolls by which the lap is supplied and fed to thecarding-engine.

O is the licker-in by which the lap is opened and the fiber cleaned.

D is a carrier-cylinder by which the fiber is taken from the licker-inand is carried to the dofier-roll E.

F represents a doffer-comb.

G G are auxiliary feed-rolls, and H is the main cylinder of acarding-engine. The rolls or cylinders C, D, E, andH are covered withcard-clothing, as is usual with rolls or cylininders forcarding-engines. The licker-in, the rolls, cylinder, and doffer-comb aredriven in theusual manner.

Cotton or wool or other fibrous material has been heretofore presentedto the carding-engine in the form of a lap or sheet, and this sheet hasbeen torn into fiber and the fiber more or less straightenedby one ormore rolls or cylinders covered with card-cloth. The fiber so opened outis then presented in that loose fibrous condition and the cardingcontinued with flats and combing or working cylinders. By this methodthe large main cylinder cannot do its full share of work, nor can itdeliver the fiber evenly to the flats or other workers, as the slightestvariation in the airdrafts will deliver much more or less fiber on oneportion of the main cylinder than on the other.

My improvement consists in mechanism for opening, straightening, andcleaning the fiber of the lap as much as is desired, such as thelickenin and one or more card-clothed cylinders for dofting the fiberand then for forming the same into a sheet or lap and pre- .senting thesheet or lap to the main cylinder,

as more fully described hereinafter.

To enable others skilled in the art to understand more clearly thenature of my invention, I will describe the same with reference to theaccompanying drawing.

The roll or lap A is a roll of lapped fiber as it comes from the lapper,andis in the same condition as the ordinary lapped rolls. The sheet oflapped fiber I pass between the feedrolls B B and present the same tothe action of the licker-in C, by which the lapped fiber is opened,partially straightened, and also partially cleaned. The fiber so openedis delivered to the carrier D and carried to the doifer-roll E. Thefiber is here in a loose and divided condition, and I have found inpractice that the main carding-cylinder is not evenly or uniformlythrough its whole width made to operate upon the fiber, and also that inall methods as heretofore practiced for delivering the fiber to the maincylinder the fiber has always been presented in a loose open conditionto the main cylinder, and when so delivered the main cylinder is notsupplied uniformly with fiber. To avoid this difficulty and also topresent the fiber in a dense condition and hold the same so that thewires of the main cylinder can act to the best possible advantage on thefiber I comb the fiber off from the doffer-roll E by means of thedoffer-comb F or any other equivalent device, and form the fiber into asheet, which sheet I pass between the rollers G G, and thus present thesheet to the main cylinder, supplying the wires across the whole Widthof the cylinder uniformly with fiber held in a sheet between the rolls GG. By this means the large or main cylinder is supplied with fiberevenly across its whole width, and all the subsequent working of thefiber is more uniformly effected.

I' have shown one way in which my invention can be carried out;butitwill be evident to any one versed in the art thatany arrangement bywhich the fiber after it has been epened by the iieker-in is againconsolidated cylinder 1), and the main cylinder II, of the IQ into asheet or lap and this hip or sheet predofter E, the doifer-colnb 1*, andthe feedsented t0 the main ending-cylinder will 50- rolls G,p1aeedbetween the carrier-cylinder cure the benefits of my invention. D andthe main eyiindeiyns and for the pur- Having thus described myinvention, I poise herein described.

claim as new and desire to secure by Letters JOHN 1. 'lIIOMPSON.

Intent Witnesses: 1 I

In a carding-engine, the combination, with i J. A. MILLER, .h-., thefeed-rolls B, the iieker-in C, the carrieri M. F. BLIGH.

